Telecom card has network, but can't make calls?

If your telecom card can normally use traffic, but can't answer the phone, it may be due to the following reasons:

1. Network connection problem: If your mobile phone is not connected to a stable network, the call function may be limited. Please make sure that your mobile phone is in a good network environment during the call.

2. Mobile phone settings: Please check whether the calling function is turned on in your mobile phone settings, and confirm whether your mobile phone card is correctly inserted into your mobile phone.

3. Carrier network problem: If your mobile phone card fails or the carrier network fails, the call function may be limited. Please contact your operator for help.

4. Regional restrictions: Sometimes, regional restrictions may affect the call function. Please make sure that your mobile phone card is not prohibited from using the calling function in your area.

If you still can't answer the phone, I suggest you contact your operator or mobile phone manufacturer for more help.